题解 | 讨厌鬼进货

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.OutputStreamWriter;
public class Main {
   public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
        String[] s = br.readLine().split("\\s+");

        int n = Integer.parseInt(s[0]);
        long x = Long.parseLong(s[1]);

        String[] strA = br.readLine().split("\\s+");
        String[] strB = br.readLine().split("\\s+");

        long sum = 0;

        for (int i = 0; i < n; i++) {
            int a = Integer.parseInt(strA[i]);
            int b = Integer.parseInt(strB[i]);

            sum += Math.min(a, b); // 每种货物选A/B中更便宜的
        }
        long res = Math.min(x, sum);// 比较单独买总和与网购成本
        out.println(res);
        out.flush();
        out.close();
        br.close();

    }
}